SKU: 67628440824

Leonardo's Lost Princess: One Man's Quest to Authenticate an Unknown Portrait by Leonardo Da Vinci

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Leonardo's Lost Princess: One Man's Quest to Authenticate an Unknown Portrait by Leonardo Da VinciHow an oddly attributed $19,000 picture proved to be a $100 million work by Leonardo da Vinci a true art world detective storyIn late 2010, art collector Peter Silverman revealed that a ""German, early 19th century"" portrait he had bought for $19,000 was, in fact, a previously unknown drawing by Leonardo da Vinci an exquisite depiction of Bianca Sforza, rendered 500 years ago. In Leonardo's Lost Princess, Silverman gives a riveting first person

How an oddly attributed $19,000 picture proved to be a $100 million work by Leonardo da Vinci--a true art-world detective story

In late 2010, art collector Peter Silverman revealed that a ""German, early 19th century"" portrait he had bought for $19,000 was, in fact, a previously unknown drawing by Leonardo da Vinci--an exquisite depiction of Bianca Sforza, rendered 500 years ago. In Leonardo's Lost Princess, Silverman gives a riveting first-person account of how his initial suspicions of the portrait's provenance were confirmed repeatedly by scientists and art experts. He describes the path to authentication, fraught with opposition and controversy. The twists and turns of this fascinating, decade-long quest lead from art history to cutting-edge science, and from a New York art gallery to Paris, Milan, Zurich, and ultimately a Warsaw library where the final, convincing evidence that the portrait was indeed by da Vinci was found.

  • Takes an up-close look at the workings of the art world and at figures ranging from dealers and connoisseurs to a suspected forger
  • Discusses current scientific techniques used to investigate and authenticate works of art, such as carbon dating and cutting-edge photography
  • Uses Silverman's drawing as an entree into Leonardo da Vinci's world: his studio, his style, and his methods
  • Explores the intersection of art and science in the authentication process, involving the work of a man who embodied that intersection

Unearthing the secrets almost lost to history, the book is ideal reading for art lovers and anyone interested in an astounding case of ""whodunit.""



Binding Type: Hardcover
Publisher: Wiley
Published: 02/01/2010
ISBN: 9780470936405
Pages: 280
Weight: 1.00lbs
Size: 9.10h x 6.10w x 1.00d

Review Citations: Library Journal 08/01/2012 pg. 102
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SKU: 67628440824

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San Leandro, US
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Durable and Fun, Just Gets a Bit Rough
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This is a really good toy overall, especially if you have dogs that love to chew. My dogs were immediately into it—they play with it nonstop, toss it around, and stay entertained for a while, which I love. It definitely holds up better than most toys we’ve tried. The only reason I’m giving it 4 stars instead of 5 is because over time it does start to fray a bit and gets a little rough, especially with heavy chewing. It’s not completely indestructible, but it still lasts longer than a lot of other toys. Overall, still a great buy and I would recommend it if your dogs need something tough but fun!
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Reviewed in the United States on April 4, 2026
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Lina
Lexington, US
★★★★★ 5
Worthwhile!
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I have a small dog with a really strong bite! Usually have to buy toys that are meant for bigger dogs. This has lasted us for what feels like forever. It does sound very heavy when dropped! My dog loves it though! Would definitely recommend!
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Kelly
Omaha, US
★★★★★ 5
Ohhh Mr. Iguana
Size: Medium/Large, Color: Illana the Iguana - Large
Mr. Iguana is a house favorite! I got my first one of these in a barkbox and my dog loved it so much, i went on the hunt for another one. Amazon saved the day! I own about 7 of these now. They are prefect for dogs just love to chew, they hold up great! And they are heavy duty, super easy to clean! My dogs are very happy, great value for the money! Doesn't have a smell, vibrant colors! Noise level is quiet, minus my dogs chewing !
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Reviewed in the United States on August 13, 2025
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sec682
Fort Morgan, US
★★★★★ 3
Not for strong chewers
Size: Medium/Large, Color: Dog Ness Monster - Large
Initially, I really liked this for my dog. She is about 8 months old and still loves to chew and destroys most toys in a few minutes. When we got this, it seemed like it would hold up for a while despite being clearly gnawed on. Unfortunately, once she focused on the softer "water" portion of the toy, that is where things went downhill with this toy. After a few short chew sessions, she was tearing chunks out of it. We had purchased a replacement since she liked the original so much, and after about 5 minutes with the replacement, she had taken enough out of the blue section that we immediately threw that one out as well. Overall while the green portion held up, the blue didn't. I can't recommend this for strong chewers.
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Reviewed in the United States on December 8, 2025
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Gary Hugo
Grantham, US
★★★★★ 4
Definitely not indestructable
Size: Medium/Large, Color: Dog Ness Monster - Large, Size: Medium/Large, Color: Dog Ness Monster - Large
I have a 1-year-old toy fox terrier (Rocky, pictured). He has been chewing on this toy for seven months now; it is one of his favorites. He has been unable to seriously damage the "ocean" portion of this toy, but as you can see from the provided image, the sea serpent has not faired that well. It is missing its snout and smaller portions of the humps. My guess is that the advertiser images showing much larger dogs with "like new" versions of the toy are just that...NEW AND UNCHEWED. I have not had to clean up bits of this toy from my floor, so I assume Rocky has been swallowing them. My hope is that the yellow material of the serpent is not chemically dangerous when exposed to digestive fluids. Rocky easily destroys plush toys in a matter of days if not hours and, consumed pieces of a small microfiber blanket that he liked to toss around and play tug-of-war with (past tense as he destroyed it and has since been trashed after I began finding feces-stained undigested pieces of it lying around). Since this toy has survived seven months and has remained recognizable, I have to agree it is durable. Just beware, if my small toy fox terrier can damage the toy as pictured, expect your large breed chewer to do similar or worse damage. Also, the toy is very heavy! When Rocky drops it down a flight of stairs, it makes a MAJOR thud at the bottom, and sometimes makes me wonder if it might crack the large tile at the bottom. I cautiously recommend the product. Note the yellow frisbee in Rocky's picture. It is only a few months old and surprisingly has not suffered any chew damage despite substantial abuse. It appears to bend in the wind like a proverbial reed, evading damage by yielding to pressure.
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Reviewed in the United States on July 5, 2024

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